CONTINUOUS_LOOP_PLAYBACK_DEVICE

Published:2009/7/17 4:02:00 Author:Jessie | From:SeekIC

This requires a prerecorded message to be preprogrammed in the ISD1020A. If you want a message to repeat over and over again, automatically, the circuit in the figure will do the trick. It uses the Operation mode to accomplish playback looping as long as the message starts at address 0 (the beginning of the memory) and does not require the full 20 seconds of analog storage. A message is first recorded into an ISD1020A using the Yack/Yack project, with all address bits tied low. Next, connect the circuit in the figure. Note that address bits A6 and A7 are tied high to enable the Operation mode. Bit A3 is also tied high to enable continuous repeat. With PD low, P/R high, and CB held low, the beginning message in the ISD1020A will repeat.



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